Magma ExpressBox 3T

[vincent kardasik]

Thunderbolt only operates at 4x. Even though the card is physically in an 8x slot, the maximum throughput via the thunderbolt cable you're going to get is only 4x. Hence the 4x warning in REDCINE-X.

Thanks a lot for the clarification Grant.
If I understand well, whose saying in that thread that their Rockets inside the Magma works or worked at 8x are wrong?

[Grant Limberg]

If I understand well, whose saying in that thread that their Rockets inside the Magma works or worked at 8x are wrong?

It definitely shows up to the OS as an 8x card slot, but you're not going to get that kind of bandwidth from a Thunderbolt enclosure.

Theoretically, the thunderbolt cables could handle 8x, but not in its current implementation. Half of the lanes in the thunderbolt cable are dedicated to DisplayPort for video output. That's what allows you to daisy-chain a monitor inline with other Thunderbolt devices to a single port on your computer, and what prevents you from utilizing the full bandwidth capability of the cable when connecting to a single device.

[vincent kardasik]

It definitely shows up to the OS as an 8x card slot, but you're not going to get that kind of bandwidth from a Thunderbolt enclosure.

Theoretically, the thunderbolt cables could handle 8x, but not in its current implementation. Half of the lanes in the thunderbolt cable are dedicated to DisplayPort for video output. That's what allows you to daisy-chain a monitor inline with other Thunderbolt devices to a single port on your computer, and what prevents you from utilizing the full bandwidth capability of the cable when connecting to a single device.

Thanks a lot for all these infos Grant.